There's a few things you can use to customize the results of the widget.

forum_id : the id of the forum you want to loadrecent_count : the amount of topics you want to displaytitle_length : the max amount of characters you want in the topic titlecache_time : the amount of time the topics are cached. mm*ss*ms

You can use the refresh button to forcefully refresh the widget, basically update the localStorage for the widget. If you make any changes, just click refresh so they take effect on your end.

Then add some CSS for the topic title style :Display > Colors > CSS stylesheet